n. /kown"teuhr mahrk'/ ; v. /kown'teuhr mahrk"/ , Numis.
n.
1. Also called counterstamp . a sign or device stamped on a coin after its minting.
v.t.
2. to stamp (a coin) with a countermark; counterstamp.
[ 1495-1505; (n.) contremarque, equiv. to contre COUNTER- + marque MARK 1 ; (v.) contremarquer, deriv. of contremarque ]